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Now showing items 621-630 of 1042
Cinética de fotodegradação natural de contaminantes emergentes em ETE aeróbia
(Universidade Federal de São Carlos, 2019-02-26)
The advances in sample preparation and analytical detection techniques made possible the evaluation of a new class of contaminants found in the ug L-1 – ng L-1 range, known as Emerging Contaminants (EC). Along with that, ...
Desenvolvimento de instrumentos e procedimentos analíticos automáticos com detecção quimiluminescente e espectrofotométrica.
(Universidade Federal de São Carlos, 2004-05-14)
In the present work is described computer-controlled flow systems
designed for process control of L-alanine synthesis and for bromide
determination in this amino acid, presented as a contaminant species. Since the
analytical ...
Fitoquímica do caule de Citrus limonia enxertado com C. sinensis e da espécie de Nycticalanthus speciosus (RUTACEAE) e biossíntese de cumarinas preniladas
(Universidade Federal de São Carlos, 2006-10-19)
The Cravo lime species (C. limonia) acts as the grafting host, mostly used in the Brazilian citriculture and because of its precocious productivity, besides its good adaptation to most common soils, permitting for an optimum ...
Emprego de estratégias quimiométricas para a diferenciação de alimentos de acordo com as formas de produção.
(Universidade Federal de São Carlos, 2006-11-14)
The application of pattern recognition techniques such as principal component analysis and cluster analysis was evaluated for classification of foods according to their production mode (industrial or homemade and organically ...
Estudo de pós cerâmicos de PbTiO3 utilizando-se o método dos precursores poliméricos.
(Universidade Federal de São Carlos, 2000-11-30)
THE STUDY OF PbTiO3 (PT) CERAMIC POWDERS USING THE POLYMERIC PRECURSOR METHOD was started by the preparation of a precursor solution of metallic cations. Citric acid was used as quelation agent and ethylene glycol as ...
Complexos do tipo cis-[Ru(L-phen)2(apy)2]2+ com interesse no tratamento de Mal de Alzheimer: propriedades físico-químicas e estudos de inibição da Acetilcolina Esterase
(Universidade Federal de São Carlos, 2011-04-15)
The photochemical and photophysical properties of the cis-[Ru(phen)2(4apy)2]2+ complex where 4apy= 4-aminopyridine are reported. In this work the complexes are thermically stable throughout the course of many hours in ...
Complexos fosfínicos de rutênio contendo os ligantes nitro, nitrosilo ou piridinas, com atividades antitumorais e antituberculose
(Universidade Federal de São Carlos, 2010-11-10)
In this work, a series of cis-[RuCl(L)(dppb)(5-mebipy)]PF6 (L=pyridine, 4- metylpyridine, 4-phenylpyridine, 4-vinylpyridine, 4-terc-butylpyridine and 4- aminopyridine); the cis-[RuCl(NO2)(dppb)(5-mebipy)], the cis-[Ru(NO ...
Determinação simultanêa de pesticidas utilizando métodos eletroanalíticos e quimiométricos
(Universidade Federal de São Carlos, 2011-03-17)
This paper describes the simultaneous determination of the pesticides paraquat and diquat using electroanalytical techniques coupled with chemometric methods. Although these two pesticides can be easily determined in trace ...
Precessão Livre de Onda Contínua (CWFP) como ferramenta para supressão do sinal de solvente em RMN de alta resolução
(Universidade Federal de São Carlos, 2011-08-01)
The application of Continuous Wave Free Precession (CWFP) method for solvent suppression in high resolution NMR spectroscopy is reported. The applied methodology was based in the use of conventional pulse sequence that use ...
A evolução das atividades experimentais em livros didáticos de Química
(Universidade Federal de São Carlos, 2011-11-25)
The objective of this study was to investigate the evolution of experimental activities presented in textbooks on chemistry from Brazil Empire until the present. The experiments are analyzed in books from the Library of ...